Electric heating device



W. F. LEBZELTER.

ELECTRIC HEATING DEVICE.

APPLICATION HLED FEB. 3. 1921.

1 ,417,079.' Patented May 23, 192.2.

UNITED STATES PATENT OFFICE'.v`

WILLIAM r. LEBZELTER, or nLIzAIaEzrII'rovvN,` PENNSYLVANIA, AssIcNon, BY MESNE ASSIGNMENTS, '.ro EARL M. MILLER., or ELIzAEETH'roWN, PENNSYLVANIA.

ELECTRIC HEATING DEVICE.

specification f Letters Patent. Patented May 23,1922.

Application led February 3, 1921. Serial No. 442.022.

To all whoml t may concern'.-

Be it known that I, WILLIAM F. LEEzEL- .'IEn, a citizen of the United States, residing at Elizabethtown, county of Lancaster, and State of Pennsylvania, have invented a new and useful Improvement in Electric Heatin Devices, of which the following is a ful clear, and exact description, reference being hadto the accompanying drawings, which form a partof this specification..

' My invention relates to an improvement in electric heating devices, andl more'parn ticularly to such devices as stoves, toaster-s, etc.

The object of my invention is to provide an improved-resistance element and means for supporting the resistance element in the bod of the device. y

eretofore in the construction of electric stoves, toasters, etc., the resistance element f has been made continuous and secured to the body of the stove in such a manner as when replacement becomes necessary, to require replacement of the complete element, which can only be accomplished by the use of tools and a certain degree of skill.

By virtue of my invention, a stove, toaster,

- etc., may be provided having a resistance which may be replaced in part or in whole, and which may be replaced in a minimum of time and without the use of tools of any kind.

I will now proceed to describe my invention in detail with reference to the accompanying drawings, in which I have illus-v trated an embodiment thereof` i-n connection with an electric toaster, and in which-#- Fig. 1 is a cross-sectional view of an electric toaster embodying my invention.

Fig. 2 is a longitudinal sectional view of the toaster'shown ingFig. 1.

Fig. 3 is a sectional view showing the lower portion of the toaster in plan.

The body of the toaster a is sup orted on legs b secured at its corners. 'he fro-nt wall is apertured for the reception of a tray c, `the bottom of which is formed by a plurality of lspaced apart wires d, whichform a support for a piece of bread e to be toasted.

' and guide the tray. The rear wall of the On the inside ofthe end wallsof the body are secured flangesf which serve to support body supports a pair of terminals g, g adapt- -ed to be connected with a source of current .what I claim anddesire to Toth@ inside of the ends of. the-body are secured supports L, to which are, secured aseries ofy separate b'us bars z' suitably insulated from the supports as indicated at j.

. The bus bars are provided with holes at their `outer edges and one in each of the upper and lower series is connected with oney of the terminals g, g, the two seriesheing connected together by means of al wire A series of coiled resistance vided at their ends with hooks m adapted to engage 1n the holes in the bus bars. thus ormmg a contact between the bus bars and the resistance wires and serving tosupport the wires.

wires Z are pro.

I n. operation, the current `enters at the i posltlve terminal, paes into the first bus bar of the upper resistance element, through the rst resistance wire to the'second bus bar, on the opposite side of the toaster, through it to the second resistance wire, and so on back and forth until the last bus bar is reached when it passes over the wire k to the lower resistance element which it passes through and out at the negativetermlnal.

' It will be notedthat lthe resistance wires,

which with use become brittle and are liable to breaka e, ma be removed by merely unh'ooking t em grom the bfus bars and new ones may be as .readily inserted. Further, a break in the resistance element;y does not necessitate the replacement of. the complete element,but merely of that vparticular wire broken.

Having now fully described my invention,

protect by Letters Patent is v 1. An electric heating device comprising a body, a plurality of us bars, perforated adjacent their edges, supported by said body. and a pluralityy of coiled resistance wires the with'said bars.. y

2. An. electric heating device .comprising ends 'of which are hooked for engagement a body. a pair of bus bars secured Withinthe body provided Vwith perforations, and a' resistance Wire extending between said bars, the ends of said Wire being hooked for engagement with the perforations in said bars. 3. An electric heating device comprising 5 a body, a pair of bus bars secured within the body provided with perforations, and a coiled resistance Wire, the ends of'whioh are hooked for engagement in said perforations and adapted to be maintained therein by the tension of the Wire.

In testimony of which invention, I have hereunto set my hand, at Elizabethtown, Pm, on this 31st day of January, 1921.

WM. F. LEBZE-LTER. 

